markUnused

Marks a column as unused.

Available attributes

Name	Description	Required for	Supports	Since
catalogName	Name of the catalog		all
columnName	Name of the column	all	all
schemaName	Name of the schema		all
tableName	Name of the table	all	all

XML example

<changeSet  author="liquibase-docs"  id="markUnused-example">  
    <pro:markUnused  catalogName="cat"  
            columnName="id"  
            schemaName="public"  
            tableName="person"/>  
</changeSet>

YAML example

changeSet:  
  id:  markUnused-example  
  author:  liquibase-docs  
  changes:  
  -  markUnused:  
      catalogName:  cat  
      columnName:  id  
      schemaName:  public  
      tableName:  person

JSON example

{  "changeSet":  {  "id":  "markUnused-example",  "author":  "liquibase-docs",  "changes":  [  {  "markUnused":  {  "catalogName":  "cat",  "columnName":  "id",  "schemaName":  "public",  "tableName":  "person"  }  }]  }  }

SQL example

ALTER  TABLE  cat.person  SET  UNUSED  COLUMN  id;

Database support

Database	Notes	Auto rollback
DB2/LUW	Not Supported	No
DB2/z	Not Supported	No
Derby	Not Supported	No
Firebird	Not Supported	No
H2	Not Supported	No
HyperSQL	Not Supported	No
INGRES	Not Supported	No
Informix	Not Supported	No
MariaDB	Not Supported	No
MySQL	Not Supported	No
Oracle	Supported	No
PostgreSQL	Not Supported	No
SQL Server	Not Supported	No
SQLite	Not Supported	No
Sybase	Not Supported	No
Sybase Anywhere	Not Supported	No